Various embodiments concern a suspension having a DSA structure on a gimbaled flexure. The suspension comprises a loadbeam and flexure attached thereto. The flexure comprises a pair of spring arms, a tongue located between the spring arms and structurally supported by the pair of spring arms, and a pair of struts. The struts are positioned respectively between the pair of spring arms and the tongue. The longitudinal axes of the struts are offset with respect to each other. The suspension further comprises a slider and a motor mounted on the flexure. The motor has a longitudinal axis that is parallel with the axes of the struts and perpendicular to a longitudinal axis of the loadbeam. Electrical activation of the motor bends the pair of struts to move the slider.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A gimbaled flexure having a dual stage actuation (DSA) structure, comprising: a flexure comprising: a pair of spring arms; a tongue located between the spring arms and structurally supported by the pair of spring arms; and a pair of struts, the struts positioned respectively between the pair of spring arms and the tongue, each strut connecting a respective one of the pair of spring arms to the tongue, the struts orientated offset with respect to each other; a slider mounting; and a motor mounted on the flexure, a first one of the pair of struts distal of the motor while a second one of the pair of struts proximal of the motor, the pair of struts outside of the perimeter of the motor, wherein electrical activation of the motor bends the pair of struts to rotate the tongue and the slider mounting about a tracking axis.
2. The gimbaled flexure of claim 1 , wherein each of the spring arms, the tongue, and the pair of struts are formed from a layer of metal.
3. The gimbaled flexure of claim 1 , wherein the flexure is cantilevered from a loadbeam and gimbaled about a dimple of the loadbeam.
4. The gimbaled flexure of claim 1 , wherein opposite ends of the motor are respectively mounted on the spring arms.
5. The gimbaled flexure of claim 1 , wherein the slider mounting is a surface on a first side of the tongue and the motor is positioned on a second side of the tongue that is opposite the first side of the tongue.
6. The gimbaled flexure of claim 1 , further comprising a slider mounted on the slider mounting.
7. The gimbaled flexure of claim 1 , wherein the tongue rotates and the pair of spring arms remain relatively stationary when the motor is electrically activated.
8. The gimbaled flexure of claim 1 , further comprising a loadbeam, the loadbeam comprising a dimple, wherein the flexure gimbals about the dimple, and the dimple impinges on the motor.
9. The gimbaled flexure of claim 1 , wherein an electrical connection is made with a terminal on the motor through contact between the dimple and the terminal.
10. The gimbaled flexure of claim 1 , wherein each of the pair of spring arms, the tongue, and the pair of struts are formed from a layer of metal, and the pair of struts is the only part of the layer of metal that connects the spring arms to the tongue.
11. The gimbaled flexure of claim 1 , wherein the slider mounting is a surface on the motor.
12. A gimbaled flexure having a dual stage actuation (DSA) structure, comprising: a flexure comprising: a pair of spring arms; a tongue located between the spring arms; and a pair of struts, the struts positioned respectively between the pair of spring arms and the tongue, each strut connecting a respective one of the pair of spring arms to the tongue, wherein each of the pair of spring arms, the tongue, and the pair of struts are formed from a layer of metal, and the pair of struts is the only part of the layer of metal that connects the spring arms to the tongue; a slider mounting; and a motor mounted on the flexure, a first one of the pair of struts distal of a second one of the pair of struts, wherein electrical activation of the motor bends the pair of struts to rotate the tongue and the slider mounting about a tracking axis.
13. The gimbaled flexure of claim 12 , wherein the flexure is cantilevered from a loadbeam and gimbaled about a dimple of the loadbeam.
14. The gimbaled flexure of claim 12 , wherein opposite ends of the motor are respectively mounted on the spring arms.
15. The gimbaled flexure of claim 12 , wherein the slider mounting is a surface on a first side of the tongue and the motor is positioned on a second side of the tongue that is opposite the first side of the tongue.
16. The gimbaled flexure of claim 12 , further comprising a slider mounted on the slider mounting.
17. The gimbaled flexure of claim 12 , wherein the tongue rotates and the pair of spring arms remain relatively stationary when the motor is electrically activated.
18. The gimbaled flexure of claim 12 , further comprising a loadbeam, the loadbeam comprising a dimple, wherein the flexure gimbals about the dimple, and the dimple impinges on the motor.
19. The gimbaled flexure of claim 18 , wherein an electrical connection is made with a terminal on the motor through contact between the dimple and the terminal.
20. The gimbaled flexure of claim 12 , wherein the slider mounting is a surface on the motor.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
March 17, 2014
April 7, 2015
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